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Acquisitions and Dispositions (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Dec. 29, 2018
Subsequent Event [Line Items]      
Acquisitions, net of cash acquired $ 1,431 $ 0  
Goodwill 1,222,382   $ 1,229,159
Proceeds from sale of investment in subsidiary 0 $ 2,805  
Loss on disposal of subsidiaries $ 0